Home / 28,575.36-39,424.86-15,997.68

Finding the Fourth Proportional to 28,575.36, 39,424.86 and 15,997.68

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Solution

The fourth proportional to 28,575.36, 39,424.86 and 15,997.68 is: 22,071.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,575.36 : 39,424.86 = 15,997.68 : x
  2. Step 2: Convert to fraction form
    28,575.36/39,424.86 = 15,997.68/x
  3. Step 3: Cross multiply
    28,575.36x = 39,424.86 × 15,997.68
  4. Step 4: Simplify right side
    28,575.36x = 630,706,294.32
  5. Step 5: Solve for x
    x = 630,706,294.32/28,575.36
  6. Step 6: Final answer
    x = 22,071.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.